Novel environmental protection dustproof blackboard eraser

The utility model relates to a novel environmental protection dustproof blackboard eraser, including the brush, still include the water tank and set up in the water injection chamber of water tank lower part, the water tank includes water tank body and tank lid, and water tank body upper portion integrated into one piece has a water filling port, and the water injection intracavity sets up hollowcylindrical water injection repeater, the upper end and the water injection chamber top of water injection repeater are link up the water injection repeater outside sets up the microtubule, the microtubule includes transverse part and vertical stroke portion, and water injection chamber lower extreme outside sets up the brush hair, vertical stroke portion stretches into the brush hair. The utilitymodel discloses a four soft plastics pieces, water injection repeater, invert cone, microtubules and control water from the speed of the outside infiltration of water tank, but it can not be too moist to ensure that the black